Amorous apes in late-night curfew

Two gibbons at a zoo have been given a curfew because their mating call is so loud it has kept their human neighbours awake.

The couples' screams have resonated throughout the night in the area of Bristol Zoo Gardens.

Environmental health officers were called in after people living near the zoo complained.

The animals would now be housed indoors during the hours of darkness, said a spokesman for the zoo.